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  • Compress video FFMPEG doesn't work

    30 juillet 2015, par Douglas Anunciação

    I’m trying to compress video using FFMPEG and this library : https://github.com/guardianproject/android-ffmpeg-java

    I imported ffmpeglib as a module in my project. This is the code is use to compress :

    public class MainActivity extends Activity {

       private ArrayList&lt;Object&gt; listVideoPaths = new ArrayList&lt;&gt;();<br />
    <br />
       @Override<br />
       protected void onCreate(Bundle savedInstanceState) {<br />
           super.onCreate(savedInstanceState);<br />
           setContentView(R.layout.activity_main);<br />
    <br />
           getGalleryVideos();<br />
    <br />
           File videoFolderFile = new File(&quot;/storage/emulated/0/DCIM/Camera/&quot;);<br />
    <br />
           if(videoFolderFile.exists())<br />
               Log.e(&quot;TEST FFMPEG&quot;, &quot;video folder exist&quot;);<br />
           else<br />
               Log.e(&quot;TEST FFMPEG&quot;, &quot;video folder DON'T exist&quot;);<br />
    <br />
    <br />
           File videoInputFile = new File(listVideoPaths.get(0).toString());<br />
    <br />
           if(videoInputFile.exists())<br />
               Log.e(&quot;TEST FFMPEG&quot;, &quot;video input file exist&quot;);<br />
           else<br />
               Log.e(&quot;TEST FFMPEG&quot;, &quot;video input file DON'T exist&quot;);<br />
    <br />
           File videoOutputFile = new File(videoFolderFile,&quot;output.mp4&quot;);<br />
    <br />
           if(videoOutputFile.exists())<br />
               Log.e(&quot;TEST FFMPEG&quot;, &quot;video output file exist&quot;);<br />
           else<br />
               Log.e(&quot;TEST FFMPEG&quot;, &quot;video output file DON'T exist&quot;);<br />
    <br />
           FfmpegController ffmpegController;<br />
    <br />
           try {<br />
               ffmpegController = new FfmpegController(this,videoFolderFile);<br />
    <br />
               Clip mediaIn = new Clip();<br />
    <br />
               mediaIn.path = videoInputFile.getAbsolutePath();<br />
    <br />
               mediaIn.videoFps =  &quot;25&quot;;<br />
    <br />
               ffmpegController.convertToMPEG(mediaIn, videoOutputFile.getAbsolutePath(), new ShellUtils.ShellCallback() {<br />
    <br />
                   @Override<br />
                   public void shellOut(String shellLine) {<br />
                       Log.e(&quot;TEST FFMPEG&quot;, &quot;shellOut - &quot; + shellLine);<br />
                   }<br />
    <br />
                   @Override<br />
                   public void processComplete(int exitValue) {<br />
                       Log.e(&quot;TEST FFMPEG&quot;, &quot;proccess complete - &quot; + exitValue);<br />
                   }<br />
               });<br />
    <br />
    <br />
           } catch (IOException e) {<br />
               e.printStackTrace();<br />
           } catch (Exception e) {<br />
               e.printStackTrace();<br />
           }finally {<br />
    <br />
               if(videoOutputFile.exists())<br />
                   Log.e(&quot;TEST FFMPEG&quot;, &quot;finished ffmpeg ---&gt; video output file exist&quot;);<br />
               else<br />
                   Log.e(&quot;TEST FFMPEG&quot;, &quot;finished ffmpeg ---&gt; video output file DON'T exist&quot;);<br />
    <br />
           }<br />
       }<br />
    <br />
       private void getGalleryVideos(){<br />
    <br />
           Cursor videoCursor = null;<br />
    <br />
           try {<br />
    <br />
               final String[] columns = { Media.DATA,<br />
                       Media._ID,<br />
                       Media.DATE_ADDED };<br />
    <br />
               final String orderBy = Media.DATE_ADDED;<br />
    <br />
               videoCursor = getContentResolver().query(<br />
                       MediaStore.Video.Media.EXTERNAL_CONTENT_URI, columns,<br />
                       null, null, orderBy);<br />
    <br />
               if (videoCursor != null &amp;amp;&amp;amp; videoCursor.getCount() &gt; 0) {<br />
    <br />
                   while (videoCursor.moveToNext()) {<br />
    <br />
                       int dataColumnIndex = videoCursor<br />
                               .getColumnIndex(Media.DATA);<br />
    <br />
                       listVideoPaths.add(videoCursor<br />
                               .getString(dataColumnIndex));<br />
    <br />
                   }<br />
    <br />
               }<br />
    <br />
               Collections.sort(listVideoPaths,new Comparator());<br />
    <br />
           } catch (Exception e) {<br />
    <br />
               e.printStackTrace();<br />
    <br />
           } finally {<br />
    <br />
               if (videoCursor != null) {<br />
    <br />
                   if (!videoCursor.isClosed()) {<br />
    <br />
                       videoCursor.close();<br />
    <br />
                   }<br />
    <br />
               }<br />
    <br />
           }<br />
    <br />
       }<br />
    <br />
    }<br />
    &lt;/code&gt;&lt;/pre&gt;<br />
    <br />
    &lt;p&gt;I get no error but the video doesn't play. The log file is:&lt;/p&gt;<br />
    <br />
    &lt;blockquote&gt;<br />
     &lt;p&gt;3096-3096/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     video folder exist 07-30 14:31:57.389&lt;br&gt;<br />
     3096-3096/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     video input file exist 07-30 14:31:57.389&lt;br&gt;<br />
     3096-3096/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     video output file DON'T exist 07-30 14:31:58.363&lt;br&gt;<br />
     3096-3096/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -<br />
     /data/data/douglasanunciacao.androidffmpegjavateste/app_bin/ffmpeg -y<br />
     -i /storage/emulated/0/DCIM/Camera/VID_20150730_142330563.mp4 -f mpeg /storage/emulated/0/DCIM/Camera/output.mp4 07-30 14:31:58.385&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - WARNING: linker:<br />
     /data/data/douglasanunciacao.androidffmpegjavateste/app_bin/ffmpeg has<br />
     text relocations. This is wasting memory and prevents security<br />
     hardening. Please fix. 07-30 14:31:58.390&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg<br />
     developers 07-30 14:31:58.391&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   built on Dec 22 2014 12:52:34 with gcc 4.6 20120106<br />
     (prerelease) 07-30 14:31:58.391&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   configuration: --arch=arm --cpu=cortex-a8<br />
     --target-os=linux --enable-runtime-cpudetect --prefix=/data/data/info.guardianproject.ffmpeg/app_opt --enable-pic --disable-shared --enable-static --cross-prefix=/home/n8fr8/dev/android/ndk/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi-<br />
     --sysroot=/home/n8fr8/dev/android/ndk/platforms/android-16/arch-arm --extra-cflags='-I../x264 -mfloat-abi=softfp -mfpu=neon -fPIE -pie' --extra-ldflags='-L../x264 -fPIE -pie' --enable-version3 --enable-gpl --disable-doc --enable-yasm --enable-decoders --enable-encoders --enable-muxers --enable-demuxers --enable-parsers --enable-protocols --enable-filters --enable-avresample --enable-libfreetype --disable-indevs --enable-indev=lavfi --disable-outdevs --enable-hwaccels --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-network --enable-libx264 --enable-zlib 07-30 14:31:58.391&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   libavutil      51. 54.100 / 51. 54.100 07-30 14:31:58.391<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   libavcodec     54. 23.100 / 54. 23.100 07-30 14:31:58.391<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   libavformat    54.  6.100 / 54.  6.100 07-30 14:31:58.391<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   libavdevice    54.  0.100 / 54.  0.100 07-30 14:31:58.391<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   libavfilter     2. 77.100 /  2. 77.100 07-30 14:31:58.391<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   libswscale      2.  1.100 /  2.  1.100 07-30 14:31:58.391<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   libswresample   0. 15.100 /  0. 15.100 07-30 14:31:58.391<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   libpostproc    52.  0.100 / 52.  0.100 07-30 14:31:58.868<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - Input #0, mov,mp4,m4a,3gp,3g2,mj2, from<br />
     '/storage/emulated/0/DCIM/Camera/VID_20150730_142330563.mp4': 07-30<br />
     14:31:58.869    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -   Metadata: 07-30 14:31:58.869&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     major_brand     : mp42 07-30 14:31:58.870&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     minor_version   : 0 07-30 14:31:58.871&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     compatible_brands: isommp42 07-30 14:31:58.872&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     creation_time   : 2015-07-30 17:23:34 07-30<br />
     14:31:58.873    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -   Duration: 00:00:01.89, start: 0.000000,<br />
     bitrate: 17571 kb/s 07-30 14:31:58.874&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     Stream #0:0(eng): Video: h264 (High) (avc1 /<br />
     0x31637661), yuv420p, 1920x1080, 15874 kb/s, SAR 65536:65536 DAR 16:9,<br />
     23.90 fps, 23.92 tbr, 90k tbn, 180k tbc 07-30 14:31:58.875    3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     Metadata: 07-30 14:31:58.876&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -       rotate          : 270 07-30 14:31:58.877&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -       creation_time   : 2015-07-30 17:23:34 07-30<br />
     14:31:58.878    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -       handler_name    : VideoHandle 07-30<br />
     14:31:58.878    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -     Stream #0:1(eng): Audio: aac (mp4a /<br />
     0x6134706D), 48000 Hz, stereo, s16, 127 kb/s 07-30 14:31:58.878&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     Metadata: 07-30 14:31:58.878&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -       creation_time   : 2015-07-30 17:23:34 07-30<br />
     14:31:58.878    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -       handler_name    : SoundHandle 07-30<br />
     14:31:58.882    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut - [buffer @ 0xb5cce0a0] w:1920 h:1080<br />
     pixfmt:yuv420p tb:1/90000 sar:65536/65536 sws_param:flags=2 07-30<br />
     14:31:58.882    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut - [buffersink @ 0xb5cce0d0] No opaque field<br />
     provided 07-30 14:31:58.891&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - [mpeg @ 0xb5c3df00] VBV buffer size not set, muxing may<br />
     fail 07-30 14:31:58.892&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - Output #0, mpeg, to<br />
     '/storage/emulated/0/DCIM/Camera/output.mp4': 07-30 14:31:58.894&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   Metadata: 07-30 14:31:58.895&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     major_brand     : mp42 07-30 14:31:58.896&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     minor_version   : 0 07-30 14:31:58.896&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     compatible_brands: isommp42 07-30 14:31:58.897&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     creation_time   : 2015-07-30 17:23:34 07-30<br />
     14:31:58.898    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -     encoder         : Lavf54.6.100 07-30<br />
     14:31:58.898    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -     Stream #0:0(eng): Video: mpeg1video,<br />
     yuv420p, 1920x1080 [SAR 65536:65536 DAR 16:9], q=2-31, 200 kb/s, 90k<br />
     tbn, 23.98 tbc 07-30 14:31:58.899&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     Metadata: 07-30 14:31:58.899&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -       rotate          : 270 07-30 14:31:58.900&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -       creation_time   : 2015-07-30 17:23:34 07-30<br />
     14:31:58.901    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -       handler_name    : VideoHandle 07-30<br />
     14:31:58.906    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -     Stream #0:1(eng): Audio: mp2, 48000 Hz,<br />
     stereo, s16, 128 kb/s 07-30 14:31:58.906&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -     Metadata: 07-30 14:31:58.906&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -       creation_time   : 2015-07-30 17:23:34 07-30<br />
     14:31:58.906    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -       handler_name    : SoundHandle 07-30<br />
     14:31:58.906    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut - Stream mapping: 07-30 14:31:58.906&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut -   Stream #0:0 -&gt; #0:0 (h264 -&gt; mpeg1video) 07-30<br />
     14:31:58.906    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut -   Stream #0:1 -&gt; #0:1 (aac -&gt; mp2) 07-30<br />
     14:31:58.906    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut - Press [q] to stop, [?] for help 07-30<br />
     14:31:59.824    3096-3182/douglasanunciacao.androidffmpegjavateste<br />
     E/TESTE FFMPEG﹕ shellOut - frame=    4 fps=0.0 q=2.0 size=       0kB<br />
     time=00:00:00.08 bitrate=   0.0kbits/s 07-30 14:32:02.029&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - frame=    8 fps=2.7 q=10.5 size=       4kB time=00:00:00.25<br />
     bitrate= 130.9kbits/s 07-30 14:32:02.536&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - frame=   13 fps=3.7 q=25.2 size=     696kB time=00:00:00.45<br />
     bitrate=12427.3kbits/s 07-30 14:32:03.045&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - frame=   18 fps=4.4 q=31.0 size=     750kB time=00:00:00.66<br />
     bitrate=9206.8kbits/s 07-30 14:32:03.582&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - frame=   23 fps=5.0 q=31.0 size=     786kB time=00:00:00.87<br />
     bitrate=7351.4kbits/s 07-30 14:32:04.140&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - frame=   28 fps=5.5 q=31.0 size=     862kB time=00:00:01.08<br />
     bitrate=6511.8kbits/s 07-30 14:32:05.239&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - frame=   30 fps=4.8 q=31.0 size=     876kB time=00:00:01.16<br />
     bitrate=6144.9kbits/s 07-30 14:32:05.746&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - frame=   35 fps=5.2 q=31.0 size=     910kB time=00:00:01.37<br />
     bitrate=5416.2kbits/s 07-30 14:32:06.317&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - frame=   41 fps=5.6 q=31.0 size=     972kB time=00:00:01.62<br />
     bitrate=4895.2kbits/s 07-30 14:32:06.832&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - frame=   45 fps=5.7 q=31.0 Lsize=    1022kB<br />
     time=00:00:01.83 bitrate=4562.1kbits/s 07-30 14:32:06.832&lt;br&gt;<br />
     3096-3182/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     shellOut - video:984kB audio:30kB global headers:0kB muxing overhead<br />
     0.756932% 07-30 14:32:06.858    3096-3096/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     proccess complete - 0 07-30 14:32:06.858&lt;br&gt;<br />
     3096-3096/douglasanunciacao.androidffmpegjavateste E/TESTE FFMPEG﹕<br />
     terminou o ffmpeg ---&gt; video output file exist&lt;/p&gt;<br />
    &lt;/blockquote&gt;<br />
    <br />
    &lt;p&gt;Does anyone knows how to solve this problem? Thanks in advance.&lt;/p&gt;
  • Using ffmpeg to convert sound files for use in an android app

    10 janvier 2012, par stefs

    short : i'm trying to simply play a sound file converted with ffmpeg in my android app, but happen to have problems getting it to work.

    long : we have an iphone app and an android app doing the same thing, and i have to port the feature playing a sound on an user interaction. i have the source file in the aiff format, and tried to convert it to mp3 for android. but the app keeps crashing when it tries to load the file

    AssetFileDescriptor fileDescriptor = context.getResources().openRawResourceFd(resid);
    final MediaPlayer mp = new MediaPlayer();
    mp.setDataSource(fileDescriptor.getFileDescriptor(), fileDescriptor.getStartOffset(), fileDescriptor.getLength());
    fileDescriptor.close();
    mp.prepare();

    more specifically, mp.setDataSource crashes. some digging around led me to believe that something's wrong with the encoding. the sound file itself resides in res/raw.

    11-29 17:11:48.012: ERROR/SoundManager(15580): java.io.IOException: setDataSourceFD failed.: status=0x80000000
    11-29 17:11:48.012: ERROR/SoundManager(15580):     at android.media.MediaPlayer.setDataSource(Native Method)
    ...

    what i tried :

    • using a different mp3 that's already used with the same code in a different place. this works.
    • converted it to wav file. this didn't cause the app to crash, but it neither played a sound. that might be a different problem.
    • converted it to ogg ; crashed

    so, the the ffmpeg conversion parameters are as follows :

    $ ffmpeg -i click_24db.aif -f mp3 ~/foobar/wheel_click.mp3
    ffmpeg version 0.7.8, Copyright (c) 2000-2011 the FFmpeg developers
     built on Nov 24 2011 14:31:00 with gcc 4.2.1 (Apple Inc. build 5666) (dot 3)
     configuration: --prefix=/opt/local --enable-gpl --enable-postproc --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libdirac --enable-libschroedinger --enable-libopenjpeg --enable-libxvid --enable-libx264 --enable-libvpx --enable-libspeex --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/gcc-4.2 --arch=x86_64 --enable-yasm
     libavutil    50. 43. 0 / 50. 43. 0
     libavcodec   52.123. 0 / 52.123. 0
     libavformat  52.111. 0 / 52.111. 0
     libavdevice  52.  5. 0 / 52.  5. 0
     libavfilter   1. 80. 0 /  1. 80. 0
     libswscale    0. 14. 1 /  0. 14. 1
     libpostproc  51.  2. 0 / 51.  2. 0
    Input #0, aiff, from &#39;click_24db.aif&#39;:
     Duration: 00:00:00.01, start: 0.000000, bitrate: 1570 kb/s
       Stream #0.0: Audio: pcm_s16be, 44100 Hz, 2 channels, s16, 1411 kb/s
    Output #0, mp3, to &#39;/Users/xyz/foobar/wheel_click.mp3&#39;:
     Metadata:
       TSSE            : Lavf52.111.0
       Stream #0.0: Audio: libmp3lame, 44100 Hz, 2 channels, s16, 64 kb/s
    Stream mapping:
     Stream #0.0 -> #0.0
    Press [q] to stop, [?] for help
    size=       1kB time=00:00:00.05 bitrate=  92.9kbits/s    
    video:0kB audio:0kB global headers:0kB muxing overhead 45.563549%

    the resulting file plays nice in itunes, does not play in vlc and crashes when loaded with the android.media.MediaPlayer (note : i first tried it with the SoundPool lib, with both mp3 and ogg, but that didn't work either).

    i also tried the following paramters, which didn't work :

    ffmpeg -i inputfile.aif -f mp3 -acodec libmp3lame -ab 192000 -ar 44100 outputfile.mp3

    i'm working on osx, built ffmpeg with macports today, android api level is 7 (google api, 2.1-update1). looking at the "supported formats" table on dev.android didn't indicate my file to be out of the spec, but i may be mistaken in that.

    i don't have the slightest clue regarding bitrates and so on, so could anybody please point me to the right combination of ffmpeg parameters to get a working mp3 for android ? i don't care if the resulting file would be mp3, ogg or 3gp or whatever.

  • How to create a video from png images using ffmpeg

    28 décembre 2011, par Rajat

    I want to create a video from different png images. My code is :

    ffmpeg -r 20 -f image2 -i slideshow/%d.png -y -s 320x240 -aspect 4:3 out.mp4

    and i receive output :

    FFmpeg version SVN-r26400, Copyright (c) 2000-2011 the FFmpeg developers
     built on Sep 27 2011 00:47:07 with gcc 4.1.2 20080704 (Red Hat 4.1.2-50)
     configuration: --enable-avfilter --enable-filter=fade
     libavutil     50.36. 0 / 50.36. 0
     libavcore      0.16. 1 /  0.16. 1
     libavcodec    52.108. 0 / 52.108. 0
     libavformat   52.93. 0 / 52.93. 0
     libavdevice   52. 2. 3 / 52. 2. 3
     libavfilter    1.74. 0 /  1.74. 0
     libswscale     0.12. 0 /  0.12. 0
    Input #0, image2, from &#39;slideshow/%d.png&#39;:
     Duration: 00:00:00.25, start: 0.000000, bitrate: N/A
       Stream #0.0: Video: png, rgb24, 720x471, 20 fps, 20 tbr, 20 tbn, 20 tbc
    [buffer @ 0x9687230] w:720 h:471 pixfmt:rgb24
    [scale @ 0x9687600] w:720 h:471 fmt:rgb24 -> w:320 h:240 fmt:yuv420p flags:0xa0000004
    Output #0, mp4, to &#39;out.mp4&#39;:
     Metadata:
       encoder         : Lavf52.93.0
       Stream #0.0: Video: mpeg4, yuv420p, 320x240 [PAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 20 tbn, 20 tbc
    Stream mapping:
     Stream #0.0 -> #0.0
    Press [q] to stop encoding
    Segmentation fault

    What might be the problem ? Please help...
    Currently i am using centos 5 server.